Chow A, Ginsberg S L
Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.
Talanta. 1983 Aug;30(8):620-2. doi: 10.1016/0039-9140(83)80144-1.
Metal thiocyanate solutions were extracted with polyether-type polyurethane foam and the metal contents determined by X-ray fluorescence. Iron, cobalt and zinc were extracted individually and collectively from 3.0M NH(4)Cl and 1.0M NH(4)SCN solutions. Similarly platinum and palladium could be simultaneously extracted from 0.12MNH(4)SCN and 5.0MNH(4)Cl for subsequent determination. The metal extractions were more than 95% complete and the determination of one metal was not affected by the presence of the others.
用聚醚型聚氨酯泡沫萃取金属硫氰酸盐溶液,并用X射线荧光法测定金属含量。铁、钴和锌分别从3.0M氯化铵和1.0M硫氰酸铵溶液中单独和共同萃取。同样,铂和钯可从0.12M硫氰酸铵和5.0M氯化铵中同时萃取,以便后续测定。金属萃取率超过95%,一种金属的测定不受其他金属存在的影响。